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tweaks: remove the superfluous calls that reset the mbtowc() state 

When mbtowc() is never called with anything less than MAXCHARLEN as
the length parameter, it will apparently not get confused and will
not need to be reset.
master
Benno Schulenberg 2018-06-03 13:58:44 +02:00
parent fb372ed0a8
commit 0ff068380c
1 changed files with 0 additions and 15 deletions
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15
src/chars.c
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@ -62,11 +62,6 @@ bool is_byte(int c)
return ((unsigned int)c == (unsigned char)c);
}
void mbtowc_reset(void)
{
IGNORE_CALL_RESULT(mbtowc(NULL, NULL, 0));
}
/* This function is equivalent to isalpha() for multibyte characters. */
bool is_alpha_mbchar(const char *c)
{
@ -75,7 +70,6 @@ bool is_alpha_mbchar(const char *c)
wchar_t wc;
if (mbtowc(&wc, c, MAXCHARLEN) < 0) {
mbtowc_reset();
return 0;
}
@ -93,7 +87,6 @@ bool is_alnum_mbchar(const char *c)
wchar_t wc;
if (mbtowc(&wc, c, MAXCHARLEN) < 0) {
mbtowc_reset();
return 0;
}
@ -111,7 +104,6 @@ bool is_blank_mbchar(const char *c)
wchar_t wc;
if (mbtowc(&wc, c, MAXCHARLEN) < 0) {
mbtowc_reset();
return 0;
}
@ -157,7 +149,6 @@ bool is_punct_mbchar(const char *c)
wchar_t wc;
if (mbtowc(&wc, c, MAXCHARLEN) < 0) {
mbtowc_reset();
return 0;
}
@ -233,7 +224,6 @@ int length_of_char(const char *c, int *width)
/* If the sequence is invalid... */
if (charlen < 0) {
mbtowc_reset();
return -1;
}
@ -261,7 +251,6 @@ int mbwidth(const char *c)
int width;
if (mbtowc(&wc, c, MAXCHARLEN) < 0) {
mbtowc_reset();
return 1;
}
@ -433,12 +422,10 @@ int mbstrncasecmp(const char *s1, const char *s2, size_t n)
bool bad1 = FALSE, bad2 = FALSE;
if (mbtowc(&wc1, s1, MAXCHARLEN) < 0) {
mbtowc_reset();
bad1 = TRUE;
}
if (mbtowc(&wc2, s2, MAXCHARLEN) < 0) {
mbtowc_reset();
bad2 = TRUE;
}
@ -591,7 +578,6 @@ char *mbstrchr(const char *s, const char *c)
wchar_t ws, wc;
if (mbtowc(&wc, c, MAXCHARLEN) < 0) {
mbtowc_reset();
wc = (unsigned char)*c;
bad_c_mb = TRUE;
}
@ -600,7 +586,6 @@ char *mbstrchr(const char *s, const char *c)
int sym_len = parse_mbchar(s, symbol, NULL);
if (mbtowc(&ws, symbol, sym_len) < 0) {
mbtowc_reset();
ws = (unsigned char)*s;
bad_s_mb = TRUE;
}